Just a scary painting
Painted by an Easterner, the artist Lucretia Ricci.
The properties are currently unknown, however it was reported that those looking at the painting had to look away, for certain, dangerous looking glyphs began forming on the forehead of the central skeletal figure.
Lucretia Ricci, a controversial artist of the modern age, is presently hunted by the Inquisition for her bold (and often morbid) interpretation of the Abyss and Corpus Infernus. Her works are destroyed when the Inquisition tracks them down, but are highly valuable on the black market.